In 1997 Westerfield received an Emmy Award nomination in the category Outstanding Makeup for a Miniseries or a Special for her work on the television movie Alien Nation: The Enemy Within, shared with Rick Stratton, Richard Snell, Craig Reardon, Janna Phillips, David Abbott, Edouard F. Henriques, and Kenny Myers and in 2005 she received another Emmy Award nomination in the category Outstanding Makeup for a Miniseries, Movie or a Special (Non-Prosthetic) for her work on the television drama Lackawanna Blues.

More recently, she worked as makeup artist on the television specials 13th Annual Prism Awards (2009) and 14th Annual PRISM Awards (2010) and on the television comedy Listen to Grandpa, Andy Ling (2012).